when receive message, use std::lock_guard in WsThreadHelper::update then call in onUIThreadReceiveMessage, will result to delete _wsHelper. While the mutex of _UIWsMessageQueueMutex is still lock, lead to crash. The crashed situation the same as following:

class TestA
{
public:
void deleteSelf();
protected:
private:
std::mutex m;
};

void TestA::deleteSelf()
{
std::lock_guardstd::mutex lk(m);
delete this; // while m is still lock, can not delete directly
}

int _tmain(int argc, _TCHAR* argv[])
{
TestA a;
a.deleteSelf();
return 0;
}